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Working Dog Breeds: Powerful, Reliable, Task-Driven (2026)

Working dogs were bred for guard, rescue, and heavy tasks. Mastiffs, Rottweilers, Dobermans, Bernese Mountain Dogs and more - powerful, loyal, best with experienced owners.

30 breeds

Akita

Courageous · Dignified · Loyal

Large · 70-130 lbs · 10-13 yrs

Alaskan Malamute

Affectionate · Loyal · Playful

Large · 75-100 lbs · 10-14 yrs

Anatolian Shepherd Dog

Loyal · Independent · Reserved

Large · 80-150 lbs · 11-13 yrs

Bernese Mountain Dog

Good-natured · Calm · Strong

Large · 70-115 lbs · 7-10 yrs

Black Russian Terrier

Intelligent · Calm · Powerful

Large · 80-130 lbs · 10-12 yrs

Boxer

Fun-loving · Active · Loyal

Large · 50-80 lbs · 10-12 yrs

Bullmastiff

Brave · Affectionate · Loyal

Large · 100-130 lbs · 7-9 yrs

Cane Corso

Intelligent · Loyal · Protective

Large · 88-110 lbs · 9-12 yrs

Caucasian Shepherd Dog

Fearless · Bold · Devoted

Large · 99-170 lbs · 10-12 yrs

Doberman Pinscher

Loyal · Fearless · Alert

Large · 60-100 lbs · 10-12 yrs

Dogo Argentino

Loyal · Courageous · Athletic

Large · 80-100 lbs · 10-15 yrs

English Mastiff

Dignified · Good-natured · Courageous

Large · 120-230 lbs · 6-10 yrs

Eurasier

Calm · Confident · Reserved

Medium · 40-70 lbs · 12-14 yrs

Giant Schnauzer

Loyal · Alert · Trainable

Large · 55-85 lbs · 12-15 yrs

Great Dane

Friendly · Patient · Dependable

Large · 110-175 lbs · 7-10 yrs

Great Pyrenees

Patient · Calm · Strong-willed

Large · 85-115 lbs · 10-12 yrs

Greater Swiss Mountain Dog

Faithful · Dependable · Family-oriented

Large · 85-140 lbs · 8-11 yrs

Greater Swiss Mountain Dog

Faithful · Alert · Even-tempered

Large · 85-140 lbs · 8-11 yrs

Kangal Shepherd

Calm · Powerful · Independent

Large · 90-145 lbs · 12-15 yrs

Komondor

Loyal · Independent · Brave

Large · 80-100 lbs · 10-12 yrs

Kuvasz

Loyal · Patient · Independent

Large · 70-115 lbs · 10-12 yrs

Leonberger

Friendly · Gentle · Playful

Large · 90-170 lbs · 9-12 yrs

Mastiff

Courageous · Dignified · Good-natured

Large · 120-230 lbs · 6-10 yrs

Newfoundland

Sweet · Patient · Devoted

Large · 100-150 lbs · 9-10 yrs

Portuguese Water Dog

Affectionate · Athletic · Adventurous

Medium · 35-60 lbs · 11-13 yrs

Rottweiler

Loyal · Confident · Protective

Large · 80-135 lbs · 9-10 yrs

Saint Bernard

Playful · Charming · Inquisitive

Large · 120-180 lbs · 8-10 yrs

Samoyed

Adaptable · Friendly · Gentle

Medium · 35-65 lbs · 12-14 yrs

Siberian Husky

Outgoing · Mischievous · Loyal

Medium · 35-60 lbs · 12-14 yrs

Tibetan Mastiff

Independent · Reserved · Protective

Large · 70-150 lbs · 10-12 yrs

Other breed groups